specimens were Yersinia positive, with 73% of birds being positive for Y. enterocolitica and
51% for Yersinia spp. A comparison of host characters and environmental conditions
showed these to be consistent with the different life strategies of Y. enterocolitica and other
Yersinia species. Y. enterocolitica is more successful at colonizing the birds' digestive tracts—
the occurrence of Y. enterocolitica was significantly higher in the cloacal than the …